I've created a complicated (for me) table combining multirow, multicolumn, and almost everything is ok, except the fact that I've got 2 extra vertical lines crossing the multirow-multicol cell.
It seems to me that TEX doesn't understand it's a merged cell :(
Can't find where I can fix it.
The code is below. Attached is also a screenshot with red arrows pointing to the problematic place.
Thanks in advance.
\documentclass[10pt,paper=a5,pagesize=auto,twoside=semi,open=any,headings=small,headings=optiontohead,chapterprefix=true]{scrbook}
\usepackage[utf8]{inputenc}
\usepackage[T2A]{fontenc}
\usepackage[russian]{babel}
\usepackage{paratype}
\usepackage[unicode, linktocpage]{hyperref}
\usepackage{tabulary}
\usepackage{multirow}
\usepackage{adjustbox}
\usepackage[fleqn]{amsmath}
\newcolumntype{P}[1]{>{\centering\arraybackslash}p{#1}}
\begin{document}
\begin{table}[h]
\caption{Результаты моделирования}\label{tab:4.6}
\centering
\begin{footnotesize}
\begin{tabulary}{\textwidth}{|@{}C@{}|@{}P{1cm}@{}|@{}P{1cm}@{}|@{}P{1cm}@{}|@{}P{1cm}@{}|@{}P{1cm}@{}|@{}P{1cm}@{}|@{}P{1cm}@{}|@{}P{1cm}@{}|@{}P{1cm}@{}|}
\hline
\multirow{3}{*}{№} & \multicolumn{3}{c|}{\multirow{3}{3cm}{Вид функций, окна анализа, обозначения среднекв. амплитуд и отношений $\frac{S}{N}$}} & \multicolumn{6}{p{6cm}|}{Значения амплитуд и отношений $\frac{S}{N}$} \\
\cline{5-10}
& & & & \multicolumn{2}{p{2cm}|}{Вариант 1 \newline($r=-0.02$)} &\multicolumn{2}{p{2cm}|}{Вариант 2 \newline($r=+0.23548$)}& \multicolumn{2}{p{2cm}|}{Вариант 3 \newline($r=-0.36664$)} \\
\cline{5-10}
& & & & $\frac{S}{N}$ = 5 & $\frac{S}{N}$ = 2 & $\frac{S}{N}$ = 5 & $\frac{S}{N}$ = 2& $\frac{S}{N}$ = 5 & $\frac{S}{N}$ = 2\\
\hline
1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10\\
\hline
2 & \multirow{3}{1cm}{$\Delta T_1$ = 80 мс} & ампл. помехи $N$ & $\sigma_{1N}$ & \multicolumn{2}{c|}{8.01} & \multicolumn{2}{c|}{6.67} & \multicolumn{2}{c|}{7.18} \\
\cline{1-1}\cline{3-10}
3 & & ампл. сигн. $S$ & $\sigma_{1S}$ & 40.04 & 16.01 & 33.35 & 13.34 & 35.91 & 14.36\\
\cline{1-1}\cline{3-10}
4 & & ампл. суммы $N+S$ & $\sigma_{1,S+N}$ & 40.64 & 17.73 & 35.52 & 16.26 & 33.94 & 13.50 \\
\hline
5 & \multirow{2}{1cm}{$\Delta T_2$ = 300 мс} & ампл. помехи $N$ & $\sigma_{2N}$ & \multicolumn{2}{c|}{11.73} & \multicolumn{2}{c|}{6.53} & \multicolumn{2}{c|}{6.53} \\
\cline{1-1}\cline{3-10}
6 & & ампл. суммы $N+S$ & $\sigma_{2,S+N}$ & 23.85 & 14.34 & 19.32 & 10.12 & 18.48 & 8.84 \\
\hline
7 & \multicolumn{3}{p{3cm}|}{Заданное отношение $\left(\frac{S}{N}\right)_\text{ист}$ = $\frac{\sigma_{1S}}{\sigma_{1N}}$ в окне $\Delta T_1$ = 80 мс} &5&2&5&2&5&2 \\
\hline
8 & \multicolumn{3}{p{3cm}|}{Измеренное отношение $\left(\frac{S}{N}\right)_1$ = $\frac{\sigma_{1,S+N}}{\sigma_{1N}}$ в окне $\Delta T_1$ = 80 мс} &5.08&2.21&5.32&2.44&4.73&1.88 \\
\hline
9 & \multicolumn{3}{p{3cm}|}{Измеренное отношение $\left(\frac{S}{N}\right)_2$ = $\frac{\sigma_{2,S+N}}{\sigma_{2N}}$ в окне $\Delta T_2$ = 300 мс (имитация практической схемы)} & 2.03&1.22&2.96&1.55&2.83&1.35 \\
\hline
\end{tabulary}
\end{footnotesize}
\end{table}
\end{document}